Khotmungkhun Kittikhun, Prathumwan Rat, Chotiyasilp Arkorn, Watcharasresomroeng Bhadpiroon, Subannajui Kittitat
Faculty of Science and Technology, Rajamangala University of Technology Suvarnabhumi, Nonthaburi, 11000, Thailand.
School of Materials Science and Innovation, Material Science and Engineering Program, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand.
Heliyon. 2023 Jan 11;9(1):e12871. doi: 10.1016/j.heliyon.2023.e12871. eCollection 2023 Jan.
The rapid material fabrications in pixel shape were mechanically studied in comparison with FDM and STL 3D printing technique. The pixel extrusion technique was the extrusion with a set of holes in the die. By controlling the flow of each hole in the die, the shape could be adjustable. The pixel molding technique composed of a set of pins. By adjusting the length of pin inside the mold, the shape of cavity could be designed. Compared to 3D printing which requires the material deposition with 2D scanning for several layers, 3D material fabrication by pixel extrusion and pixel molding were much faster; however, their resolutions were still much worse compared to 3D printing at the moment. SEM, Tensile test, flexural test, including hardness were used to observe the properties of pixel extrusion and pixel molding. The pixel molding technique was also used to fabricate many materials to compare the properties such as cement, iron, and silica. Apparently, materials could be formed and mechanical properties were investigated.
与熔融沉积成型（FDM）和立体光刻（STL）3D打印技术相比，对像素形状的快速材料制造进行了力学研究。像素挤压技术是通过模具上的一组孔进行挤压。通过控制模具中每个孔的流量，形状可以调节。像素成型技术由一组销组成。通过调整模具内销的长度，可以设计型腔的形状。与需要通过二维扫描逐层进行材料沉积的3D打印相比，通过像素挤压和像素成型进行的3D材料制造要快得多；然而，目前它们的分辨率与3D打印相比仍然差得多。使用扫描电子显微镜（SEM）、拉伸试验、弯曲试验（包括硬度测试）来观察像素挤压和像素成型的性能。像素成型技术还用于制造许多材料，以比较水泥、铁和二氧化硅等材料的性能。显然，可以形成材料并研究其力学性能。
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